Abrasive strip holder



c. w. BOOTH v 2,464,658

ABRASIVE STRIP HOLDER I March 15, '1949.

Filed Fb. 16, 1948 Char/es W. Boot/1 A INVENToR.

BY n y WW 3M@ Patented Mar. 15, 1949 u UNITED STATES PATENT OFFICEABRASIVE STRIP HOLDER Charles W. Booth, San J ose, Calif. ApplicationFebruary 16, 1948, ySerial No. 8,587

1 lThis invention relates to new and useful 'improvements `in illes andthe primary object of the present invention is to provide a novel andimproved abrasive strip holder.

Another important object of the present invention is to provide anabrasive strip holder including a support applicable` for frictionallyengaging an abrasive strip and novel and improved support urging meansfor retaining the abrasive strip in a tight position on the support.

A furthery object of the present invention is to provide an abrasivestrip holder that is extremely small and compact in structure and onethat is so designed as to facilitate a strip of abrasive material to bequickly and readily applied thereto or removed therefrom in a convenientl manner.

A still further aim of the present invention is to provide an abrasivestrip holder that is simple and practical in construction, strong andreliable in use, neat and attractive in appearance, relativelyinexpensive to manufacture and otherwise well adapted for the purposesfor which the same is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein likenumerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the abrasive strip holderconstructed in accordance with the present invention, and with parts ofthe handle portion thereof broken away and shown in section;

Figure 2 is a longitudinal horizontal sectional view taken substantiallyon the plane of sectionline 2-2 of Figure 1;

Figure 3 is a fragmentary perspective view of one end of the presentabrasive strip-holder;

Figure 4 is a perspective view of the lower half of the handle portionused in conjunction with the present invention; and, l,

Figure 5 is an enlarged transverse vertical sectional view takensubstantially on the plane of section line 5-5 of Figure 1.

Referring now to the drawings in detail, wherein for the purpose ofillustration, there is disclosed a preferred embodiment of the presentinvention, the numeral II) represents the handle portion of the presentabrasive strip holder generally, comprising an upper half I2 and a lowerhalf I4. These halves I2 and I4 are substantially channel shaped in formwith their rear portions being provided with transverse ribs I6 4Claims. (Cl. 51--1873 2 which vare integrally formed with the respectivehalves. Rigidly secured to or forming an integral .part of the rib I6for the lower half I4, is a spacer lug I8 having an internally threadedopening 20 that opposes a countersunken aperture 22 provided in theupper half I2. There is provided a further countersunken aperture 24 inthe upper half I2 thatregisters with an internally threaded guide sleeve26 which is xedly secured to the web portion of the lower half I4,adjustably mounted in the lug I8, and the sleeve 26, are fasteners 28the head portions 30 of which frictionally engage the apertures 22 and24.

Slidably positioned on the handle portion I0, is one end of an elongatedsubstantially rectangular support 32 that is provided with alongitudinal guide slot 34 that frictionally engages the guide sleeve26. Frictionally positioned in recesses 36 and 38 formed on the lowerhalf and further recesses 40 and 42 provided in the upper half I2 thatoppose recesses 36 and 38, is a pair of coil springs 44 and 46 which arebiased between the ribs I6 and the inner edge 48 of the support 32 tonormally urge the support in an extended position relative to the handleportion IIJ.

Preferably integrally formed with the forward open ends of the halves I2and I4, is a pair of forwardly diverging channeled extensions 50 and 52each of which are provided with a pair of transversely extending spacedopenings or slots 54 and 55.

In .practical use of the present invention, the support 32 is pushedinto the handle until the innermost end 58 of the slot 34 opposesvertical openings 60 and 62 provided in the upper half I2 and the lowerhalf I4, and a pin or the like 64 is extended through the openings 60and 62 and slot 34 to retain the support 32 in a retracted position. Oneend 66 cfan elongated strip of abrasive material 68 is then extendedupwardly through the slot 54 then downwardly and forwardly through theslot 56 to lace the end 66 to the extension 50. The strip 68 embracesthe support 32 and the free end 'I0 thereof is laced through the slots54 and 56 of the extension 52. The pin 64 is removed from the handleportion In and the support 32 will be urged forwardly by the springs 44and 46 to prevent any looseness or slack in the strip.

In View of the foregoing description taken in conjunction with theaccompanying drawings it is believed that a clear understanding of thedevice will be quitev apparent to those skilled in this art. A moredetailed description is accordingly deemed unnecessary.

It is to be understood. however. that even though there is herein shownand described a tive to the handle, recesses provided in the handle,

spring means positioned in the recesses for urging the support in anextended position relative to the handle, a strip of abrasive materialembracing the support, means for holding the ends ofthe strip to thehandle, said support having a slot, and means detachably carried by saidhandleen-V gaging said slot for holding the support in a retractedposition.

2. The combination of claim 1 wherein said means for holding the ends ofthe strip to the handle includes a pair of slotted retaining members forinterlacing engagement with the ends of the abrasive strip.

3. The combination of claim 1 wherein said means .for holding thesupport in a retracted position includes an opening provided in saidhandle, a slot provided in said support registering with said openingwhen said support is disposed in a retracted position, and a removablepin received in said opening and said slot.

4. The combination of claim 1 wherein said means for guiding andlimiting the sliding movement of said support relative to said handleincludes a guide sleeve fixed to the web portion of said handle, saidsupport having a longitudinal slot slidablyreceiving said sleeve.

CHARLES W. BOOTH.

REFERENCES CITED Norway Sept. 20. 1943

